But why nearly 100%?
On the one hand, this depends on the print image of the ink, this I mean but rather the color intensity. In normal printing with paint on paper everything is in perfect order. When printing images, the ink unfortunately looks a little paler than the original of Canon, but the result is still a good printed image.
Other downside is some processing of bottles, in which the ink is filled. I fear that the ink up to a certain point can be recorded very well with the provided syringes and needles, but if the fill to a certain point falls it will be difficult to absorb the ink without major mess to organize. Possibly could be considered more like a medical device with a self-sealing rubber closure to equip the bottles and provide instead a blunt needle, a sharp needle here. The syringe may then be inserted and are sucked upside down.
Then I would be 100% satisfied.